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Finding the Fourth Proportional to 30,361.31, 45,601.99 and 18,377.68

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Solution

The fourth proportional to 30,361.31, 45,601.99 and 18,377.68 is: 27,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.31 : 45,601.99 = 18,377.68 : x
  2. Step 2: Convert to fraction form
    30,361.31/45,601.99 = 18,377.68/x
  3. Step 3: Cross multiply
    30,361.31x = 45,601.99 × 18,377.68
  4. Step 4: Simplify right side
    30,361.31x = 838,058,779.58
  5. Step 5: Solve for x
    x = 838,058,779.58/30,361.31
  6. Step 6: Final answer
    x = 27,602.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.